Question

I made it so that users could check ‘remember me’ on a login form and it would set cookies. Now if they logout it directs them to logout.php and the cookies should be deleted. It all works except i get these error messages.

Notice: Undefined index: username in C:\xammp\htdocs\mine\logout.php on line 6

Notice: Undefined index: password in C:\xammp\htdocs\mine\logout.php on line 7

My code for logout.php is

<?php

session_start();

if (isset($_SESSION['username'])) {
    setcookie('username', $_POST['username'], false, '/');
    setcookie('password', $_POST['password'], false, '/');
    session_destroy();
    echo "You've benn logged out. <a href='index.php'>Click here</a> to return.";
} else {
    die ('You are not logged in!');
}

Answer 1

Just use isset($_POST['username'])?$_POST['username']:'' instead of $_POST['username']

And isset($_POST['password'])?$_POST['password']:'' instead of $_POST['password']

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See: Ternary Operator